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That’s intriguing, it sounds stereo — I wonder when YouTube made that switch for regular-quality videos, as I recall they used to be mono (and hence, did horrible phasey things to sounds like this).

I’ll have to listen to my old Jarre to compare (as one of the things he does so masterfully well is offset the “airy” sounds with deeper fare), but the sounds certainly evolve well; younger audiences might suggest “MORE BASS!” and I think a touch of detuning and more chorus would enhance its variety.